Abstract
This paper presents a practical numerical method to determine both the spatial and temporal distribution of driving rain on buildings. It is based on an existing numerical simulation technique and uses the building geometry and climatic data at the building site as input. The method is applied to determine the 3D spatial and temporal distribution of wind-driven rain on the facade a low-rise building of complex geometry. Distinct wetting patterns are found. The important causes giving rise to these particular patterns are identified: (1) sweeping of raindrops towards vertical building edges, (2) sweeping of raindrops towards top edges, (3) shelter effect by various roof overhang configurations. The comparison of the numerical results with full-scale measurements in both space and time for a number of on site recorded rain events shows the numerical method to yield accurate results.
| Original language | English |
|---|---|
| Pages (from-to) | 441-462 |
| Number of pages | 22 |
| Journal | Wind and Structures |
| Volume | 5 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 25 Oct 2002 |
Keywords
- Building
- CFD
- Driving rain
- Experimental verification
- Numerical simulation
- Wind-driven rain
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Modelling and Simulation